Tag Archives: protein hydrolysate

562–573 M. Mostipan, K. Vasylkovska, O. Andriienko, M. Kovalov and N. Umrykhin
Productivity of winter wheat in the northern Steppe of Ukraine depending on weather conditions in the early spring period
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Productivity of winter wheat in the northern Steppe of Ukraine depending on weather conditions in the early spring period

M. Mostipan¹, K. Vasylkovska¹*, O. Andriienko¹, M. Kovalov¹ and N. Umrykhin²

¹Central Ukrainian National Technical University (CUNTU), Department of General Agriculture, University Avenue, 8, UA25006 Kropyvnytskyi, Ukraine
²Institute of Steppe Agriculture, National Academy of Agrarian Sciences of Ukraine, Street Central, 2, UA 27602 Sozonivka village, Kirovohrad region, Ukraine
*Correspondence: vasilkovskakv@ukr.net

Abstract:

The objective of the research was to develop scientific and methodological bases for adapting the technology of growing winter wheat depending on weather conditions in early spring. Winter wheat was grown at different sowing dates. It is established that the reserves of productive moisture in the soil at the time of renewal of spring vegetation are crucial for the formation of winter wheat harvest. After worse forecrop, the impact of moisture on productivity reaches 49.7–66.4%. The later the renewal of spring vegetation of winter wheat is, the lower the productivity of the crops. The shorter the period from the date of transition of the average daily air temperature above 0 °C to the beginning of active vegetation of plants is, the higher the productivity of winter wheat crops. Therefore, depending on weather conditions of early spring period and the time of renewal of spring vegetation of plants, it is necessary to adjust the technology of growing winter wheat during the spring-summer period.

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913–922 M. Baidakova, V. Sitnikova, M. Uspenskaya, R. Olekhnovich and M. Kremenevskaya
Polymer acrylic hydrogels with protein filler: Synthesis and characterization
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Polymer acrylic hydrogels with protein filler: Synthesis and characterization

M. Baidakova*, V. Sitnikova, M. Uspenskaya, R. Olekhnovich and M. Kremenevskaya

International Research Center for Bioengineering, ITMO University, 49 Kronverksky ave., RU197101 St. Petersburg, Russia
*Correspondence: mvbaidakova@yandex.ru

Abstract:

The water-retention hydrogel composites were synthesized by the free-radical polymerization depending on the order of addition filler of the protein hydrolysate. As the filler was used protein hydrolysate, ‘Biostim’, obtained by processing cattle hides. The influence of gelation time on the synthesis parameters of hydrogel compositions was investigated. It is found that the gelation time of the sample without filler is 2–2.5 times longer than filled of hydrogel compositions. The structural characteristics of polymer composition by TGA, DSC and atomic force microscopy were determined. FTIR spectra found decrease in the intensity of vibrations of (-COO-) groups, indicating about additional ionic interactions. Decrease the beginning evaporation temperature of polymer composites with increase concentration of protein filler, indicating the destruction of the ordered structure of the polymer material revealed by thermogravimetric analysis (TGA). The influence of various media, such as distilled water, saline solution, and buffer solutions at differents pH on the swelling behavior of hydrogels was also assessed. Maximum swelling capacity showed sample prepared with order of addition filler at the end of synthesis (Scheme I). The kinetics of the release protein hydrolysate from the polymer matrix was measurement by spectrophotometric method. The synthesized hydrogel composites with protein hydrolysate and improved physicochemical properties are of practical interest as water-retaining materials for increasing of crop the yield in agricultural.

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1330–1347 M. Kremenevskaya, O. Sosnina, A. Semenova, I. Udina and A.Glazova,
Meat industry by-products for berry crops and food production quality improvement
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Meat industry by-products for berry crops and food production quality improvement

M. Kremenevskaya¹, O. Sosnina¹, A. Semenova², I. Udina³ and A.Glazova¹,*

¹ ITMO University, Faculty of Food Biotechnologies and Engineering, Department of Meat and Fish Processing and Refrigeration, 49 Kronverksky Pr., St. Petersburg, 197101, Russia
² The Gorbatov’s All-Russian Meat Research Institute (VNIIMP), Deputy director for scientific work, 26 Talalikhina Str., Моscow, 109316, Russia
³ LLC JTI Russia, Scientific and Regulatory Affairs Department, Scientific and Regulatory Affairs Manager, 1st Krasnogvardeysky proezd, Moscow, 123100, Russia
*Correspondence: sosnina.olga.ITMO@yandex.ru

Abstract:

This paper describes the problem of obtaining a hydrolysate from animal industry byproducts. A new innovative protein-containing product has been created to stimulate the growth and development of berry and fruit crops. The paper describes a technique for a plant treatment with a hydrolysate invented, its concentrations being determined. We have studied the chemical composition of fruit and berry raw materials in a native form after rapid freezing and refregiration. The possibility of creating a new confectionery product made from quick-frozen berries treated with a stimulator is predetermined.

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604–613 M. Uspenskaya, M. Kremenevskaya, K. Volkova and O. Sosnina
Aquaculture: problems and modern perspective on topical solution
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Aquaculture: problems and modern perspective on topical solution

M. Uspenskaya, M. Kremenevskaya, K. Volkova and O. Sosnina*

ITMO UNIVERSITY, Kronverksky pr. 49, RU 197101 St. Petersburg, Russia
*Correspondence: sosnina.olga.ITMO@yandex.ru

Abstract:

In this article describes the current problems of aquaculture. As a new material for feeding fish pond serves biocomposite based on protein hydrolysates and natural polymers. Also disclosed is a method of forming the proposed mother. Studies have been conducted biocomposite molecular weight and amino acid composition of the initial protein products.

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